In-ear noise dosage device and method for evaluating noise level according to operating posts

Abstract

The invention relates to an audiometry device and the related field of use thereof, and specifically relates to an in-ear noise dosage device and a method for evaluating noise level according to operating posts. The in-ear noise dosage device comprises an in-ear noise dosimeter, special data transmission equipment and a computer. The in-ear noise dosimeter is connected with the computer through the special data transmission equipment. The in-ear noise dosimeter comprises a machine shell fitting the shape of an external auditory canal of a human body. A miniature microphone, an ultra-miniaturedigital signal processor, a battery and a communication interface are arranged in the machine shell. The device can be placed in the auditory meatus after being miniaturized, so that the device has the advantages that the noise collection points are more reasonable, the obtained noise exposure level value is more valuable, and the noise level of a post can be reflected more accurately compared with a measurement result of one or more fixed points.

Description

Technical field [0001] This application relates to audiometry devices and related fields of their use, and in particular to an in-ear noise dosing device and a method for assessing noise level by job position. Background technique [0002] Exposure to strong ship noise (including steady-state noise and impulse noise) often leads to acute and chronic auditory system damage. In order to clarify the pathogenesis of noise-induced hearing loss and screen the susceptible population of noise-induced hearing loss, it is urgent to establish real-time monitoring of noise exposure intensity and crew Professional platform and technical means for dynamic detection of hearing condition and noise reduction effect evaluation of existing noise prevention facilities. [0003] The noise measurement tool still in use in our country is the noise sound level meter. This type of device is too large, most of which have external wiring, which is inconvenient to operate. Existing noise dosimeters are all ...

AI Technical Summary

Problems solved by technology

These devices are too bulky, and most of them have external wiring, which is inconvenient to operate

Existing noise dosimeters are all wired box-type devices, and their noise collection microphones are far away from the external auditory canal of the subject. The noise exposure dose information that can be provided is extremely unstable and is easily disturbed or affected by near-field noise around the body, which greatly reduces data accuracy

However, the personal wireless noise measuring instrument currently used in foreign countries has a small shape of only about 50 grams, without connecting wires, control buttons and displays.

Although the device can be worn on the subject's shoulder for testing, it belongs to near-field detection, but because it is not real-ear real-time monitoring, it is far away from the exposed ear, and it is still unable to accurately and real-time obtain the actual dynamics in the subject's ear Noisy information, and is also susceptible to external environment, reducing the accuracy of the data

[0004] In terms of technical methods, the current noise test method and calculation formula are environmental sound tests, which are static noise records for specific noise exposure environments, that is, "measuring things but not people", and cannot test the continuous time of specific jobs as the recording object. Dynamic noise dose, the lack of dynamic cumulative data of continuous noise exposure at different locations in the specific test area, and the lack of important on-site data for individual noise protection and noise reduction processing, resulting in low real-time noise detection, low efficiency of noise-induced deafness protection and treatment, and noise Problems such as weak on-site treatment technology for acute hearing impairment

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